Re: Kernel Oops with ath9k_htc during AES decrypt on ARM / BeagleBone Black

["Schroer, Jens Peter" <jens.schroer@xxxxxxxxxx>]

Hi Oleksij,

Thanks for the reply.
For this test I am running it in managed mode.

/sbin/iwconfig:
wlan0     IEEE 802.11bgn  ESSID:"myap"
          Mode:Managed  Frequency:2.422 GHz  Access Point: 
1C:EC:3B:52:9C:5A
          Bit Rate=72.2 Mb/s   Tx-Power=20 dBm
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-38 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:12   Missed beacon:0



On 2014-10-09 15:10, Oleksij Rempel wrote:
> Am 09.10.2014 um 13:06 schrieb Schroer, Jens Peter:
> > Hi,
> >
> > While running a iperf test, I experienced a kernel Oops in the Wifi /
> > crypto module. I tried to reproduce it, but only managed to do it once
> > so far.
>
> Hmm.. do it run in monitor or AP mode?
> I ask, because in combination with your other email i would assume that
> not all corrupt packets are filtered.
>
> > The system is:
> > BeagleBone Black, Rev C
> > Kernel 3.17.0-bone4 from BeagleBone
> > Using debian Jessie for Arm
> > Wifi: Netgear WNA1100
> >
> > lsusb:
> > Bus 002 Device 003: ID 0846:9030 NetGear, Inc. WNA1100 Wireless-N 150
> > [Atheros AR9271]
> > Bus 002 Device 002: ID 1a40:0201 Terminus Technology Inc. FE 2.1 
> > 7-port Hub
> > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> >
> > Scenario:
> >
> > I am running
> > iperf -c 192.168.1.32 -i1 -t300 -w1000k
> > to test network performance
> >
> > During this test I got the following kernel Oops (see below).
> > Is this a known issue (I couldn't find anything related on Google so 
> > far)?
> >
> > Kind regards,
> > Jens
> >
> >
> > [   72.919376] kernel BUG at crypto/scatterwalk.c:37!
> > [   72.924396] Internal error: Oops - BUG: 0 [#1] THUMB2
> > [   72.929691] Modules linked in: ctr ccm omap_aes omap_sham evdev 
> > arc4
> > ath9k_htc ath9k_common ath9k_hw ath mac80211 cfg80211
> > [   72.941329] CPU: 0 PID: 0 Comm: swapper Not tainted 3.17.0-bone4 #1
> > [   72.947902] task: c09baf68 ti: c09ae000 task.ti: c09ae000
> > [   72.953577] PC is at scatterwalk_start+0x12/0x14
> > [   72.958417] LR is at scatterwalk_map_and_copy+0x23/0x84
> > [   72.963894] pc : [<c02eda8a>]    lr : [<c02edbd7>]    psr: 20010133
> > [   72.963894] sp : c09afac8  ip : 00000000  fp : c09afcf4
> > [   72.975930] r10: 00000000  r9 : 00000000  r8 : 00000008
> > [   72.981405] r7 : c09afb98  r6 : 00000008  r5 : c09afccc  r4 : 
> > 00000000
> > [   72.988245] r3 : 00000000  r2 : 00000000  r1 : c09afccc  r0 : 
> > c09afac8
> > [   72.995089] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA Thumb
> > Segment kernel
> > [   73.002933] Control: 50c5387d  Table: 9bf9c019  DAC: 00000015
> > [   73.008954] Process swapper (pid: 0, stack limit = 0xc09ae240)
> > [   73.015066] Stack: (0xc09afac8 to 0xc09b0000)
> > [   73.019633] fac0:                   c09afccc bf98f2c7 00000006
> > c09afb78 c09afb38 de356580
> > [   73.028210] fae0: c09afd7c 00000008 c09afb98 bf9bb933 00000000
> > dbfa1b80 de458fa0 bf990e67
> > [   73.036786] fb00: dbfa1b80 de458fa0 00000000 c09afbb0 00000006
> > de356580 c09afb38 00000a34
> > [   73.045360] fb20: c09afcc0 c09afd08 dbfd7a34 00000000 c09afcf4
> > bf891a51 00000000 00000000
> > [   73.053935] fb40: 00000000 00000000 de356580 00000000 00000018
> > 00000008 c09afd7c c09afcf4
> > [   73.062510] fb60: c09afccc c09afd08 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.071085] fb80: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.079659] fba0: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.088233] fbc0: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.096807] fbe0: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.105382] fc00: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.113956] fc20: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.122531] fc40: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.131106] fc60: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.139681] fc80: 00000000 00000000 00000000 00000000 00000000
> > 00000000 00000000 00000000
> > [   73.148256] fca0: 00000000 00000000 00000000 00000000 00000000
> > 00000000 0000007f bf886a79
> > [   73.156831] fcc0: de546700 c09afd7c 00000040 dfe70ae0 00000a34
> > 00000000 00000000 00000000
> > [   73.165406] fce0: dfe70ae2 00000a34 00000008 00000000 00000000
> > dfb045e2 00000d5e 00000018
> > [   73.173980] fd00: 00000000 00000000 dfe70ae2 00000a34 00000000
> > 00000000 00000000 dc8cb300
> > [   73.182557] fd20: 00000000 dd54f100 c09b7008 0000001a dd4af000
> > dbfd7a34 dbfd7a12 00000000
> > [   73.191132] fd40: 00000000 bf886a79 00000000 dbfd7a34 00000006
> > 00000000 f0800000 42881800
> > [   73.199708] fd60: 7a1504c4 eebc1b89 5e9c557b e76e6008 00004996
> > 00000000 00000000 eebc0001
> > [   73.208282] fd80: 5e9c557b 00000000 dd56f080 dc8cb300 c09afe54
> > dd54f100 c09afe2c c09afe54
> > [   73.216858] fda0: 00004a88 dbfd7a12 c09ae000 00004000 00000000
> > bf897719 00000000 c006a6c5
> > [   73.225434] fdc0: 0003a980 00000000 00989680 00000000 684e00f5
> > 00000000 c09dc848 c09baf68
> > [   73.234009] fde0: 00000000 bf896ed9 0000002c 00000040 00000000
> > bf896ed9 00000001 0000002d
> > [   73.242583] fe00: 00989680 c09afe54 de4583a0 de530c84 c09ddf68
> > 00000000 00200200 dbf87b2c
> > [   73.251158] fe20: bf88a83d bf899925 264a8a64 dd54f100 de4583a0
> > dd562500 dbf87800 dd4af000
> > [   73.259733] fe40: 00000000 00000000 00000000 00000000 00000000
> > de532580 dd54f4c0 00000036
> > [   73.268309] fe60: f764151b c09ae000 00000100 bf88a855 c0a447c0
> > c005fe3f 00000001 c006a53b
> > [   73.276883] fe80: 00000000 de530c84 c0a9aa00 c09afec0 c09ddf68
> > 00000000 00200200 c0a30d30
> > [   73.285458] fea0: 00000004 c00603ad f76400ec 00000010 bf88a83d
> > dbf87b2c 00000000 00200200
> > [   73.294033] fec0: c09afec0 c09afec0 c0a187d8 c0a57b44 00000002
> > c09ae000 00000054 00000001
> > [   73.302607] fee0: c0a44ab8 c0a30d30 00000004 c00331fd 00000010
> > c09df0e0 00000002 00000100
> > [   73.311182] ff00: c0a57b40 0000000a ffffa748 00200000 00000054
> > c09ae000 00000000 00000054
> > [   73.319756] ff20: 00000054 c09aff68 c0a44ab8 c0a30d30 ffffffed
> > c003352b c0a091a8 c000dda3
> > [   73.328331] ff40: fa200098 fa2000b8 fa2000d8 c000847b c000deb6
> > 40010033 ffffffff c09aff9c
> > [   73.336908] ff60: 00000000 c05b6e1b ffffffed 00000000 00000000
> > c00197e1 c09ae000 00000000
> > [   73.345483] ff80: c09b70e4 00000000 00000000 c0a44ab8 c0a30d30
> > ffffffed 00000000 c09affb0
> > [   73.354057] ffa0: c000deb5 c000deb6 40010033 ffffffff 00000000
> > c004b2a9 00000000 c097b660
> > [   73.362632] ffc0: 00000000 c09418c5 ffffffff ffffffff c09414d5
> > 00000000 c097b660 dc8cb300
> > [   73.371208] ffe0: c0a566d4 c09b7074 c097b65c c09bc3d0 80004059
> > 80008079 00000000 00000000
> > [   73.379796] [<c02eda8a>] (scatterwalk_start) from [<c02edbd7>]
> > (scatterwalk_map_and_copy+0x23/0x84)
> > [   73.389297] [<c02edbd7>] (scatterwalk_map_and_copy) from 
> > [<bf9bb933>]
> > (crypto_ccm_decrypt+0x62/0x190 [ccm])
> > [   73.399802] [<bf9bb933>] (crypto_ccm_decrypt [ccm]) from 
> > [<bf891a51>]
> > (ieee80211_aes_ccm_decrypt+0xdc/0x120 [mac80211])
> > [   73.411258] [<bf891a51>] (ieee80211_aes_ccm_decrypt [mac80211]) 
> > from
> > [<bf886a79>] (ieee80211_crypto_ccmp_decrypt+0x1b0/0x1e4 [mac80211])
> > [   73.424265] [<bf886a79>] (ieee80211_crypto_ccmp_decrypt [mac80211])
> > from [<bf897719>] (ieee80211_rx_handlers+0x714/0x1b34 [mac80211])
> > [   73.437018] [<bf897719>] (ieee80211_rx_handlers [mac80211]) from
> > [<bf899925>] (ieee80211_release_reorder_timeout+0x48/0x4c [mac80211])
> > [   73.449838] [<bf899925>] (ieee80211_release_reorder_timeout
> > [mac80211]) from [<bf88a855>]
> > (sta_rx_agg_reorder_timer_expired+0x18/0x1c [mac80211])
> > [   73.463586] [<bf88a855>] (sta_rx_agg_reorder_timer_expired
> > [mac80211]) from [<c005fe3f>] (call_timer_fn+0x2b/0xcc)
> > [   73.474445] [<c005fe3f>] (call_timer_fn) from [<c00603ad>]
> > (run_timer_softirq+0x145/0x198)
> > [   73.483117] [<c00603ad>] (run_timer_softirq) from [<c00331fd>]
> > (__do_softirq+0x65/0x1ec)
> > [   73.491604] [<c00331fd>] (__do_softirq) from [<c003352b>]
> > (irq_exit+0x63/0x98)
> > [   73.499185] [<c003352b>] (irq_exit) from [<c000dda3>]
> > (handle_IRQ+0x27/0x5c)
> > [   73.506580] [<c000dda3>] (handle_IRQ) from [<c000847b>]
> > (omap3_intc_handle_irq+0x63/0x74)
> > [   73.515167] [<c000847b>] (omap3_intc_handle_irq) from [<c05b6e1b>]
> > (__irq_svc+0x3b/0x5c)
> > [   73.523648] Exception stack(0xc09aff68 to 0xc09affb0)
> > [   73.528943] ff60:                   ffffffed 00000000 00000000
> > c00197e1 c09ae000 00000000
> > [   73.537518] ff80: c09b70e4 00000000 00000000 c0a44ab8 c0a30d30
> > ffffffed 00000000 c09affb0
> > [   73.546092] ffa0: c000deb5 c000deb6 40010033 ffffffff
> > [   73.551392] [<c05b6e1b>] (__irq_svc) from [<c000deb6>]
> > (arch_cpu_idle+0x1e/0x28)
> > [   73.559153] [<c000deb6>] (arch_cpu_idle) from [<c004b2a9>]
> > (cpu_startup_entry+0x111/0x1a8)
> > [   73.567829] [<c004b2a9>] (cpu_startup_entry) from [<c09418c5>]
> > (start_kernel+0x279/0x2e4)
> > [   73.576406] Code: b113 684b 6043 4770 (de02) b510
> > [   73.581430] ---[ end trace fad732941e738de9 ]---
> > [   73.586268] Kernel panic - not syncing: Fatal exception in 
> > interrupt
> > [   73.592929] drm_kms_helper: panic occurred, switching back to text
> > console
> > [   73.600148] ---[ end Kernel panic - not syncing: Fatal exception in
> > interrupt
> >
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